Splash lubricating system



Sept. 25,1923. 1,468,778

L. M. ENDRES ET AL SPLASH LUBBICATING SYSTEM Fill ed NOV. 17, 1921 1%.].

Lawrence JvLEndres Michae I A Endres Fatented Sept. 25, 1923.

STATES 4 MGSJIS my 57s LAWRENCE I'll. ENDRES AND MICHAEL A. ENDRES, OFDANE, \VISCONSIN.

SPLASH LUBRICATING SYSTEM.

Application filed November To all whom it may concern:

Be it known that we. LAXVRENCE M. EN- nnns ar lilicninr. A. ENDRES, bothcitizens of the United States, and residents of Dane, in the county ofDane and State of WVisconsin, have invented certain new and usefulImprovements in Splash Lubricating Sys hereby declare that the folfun.clear. and exact description rig is a thereof.

Our invention refers to splash lubricating systems employed inconnection with a splash pan or the crank case of internal combustionengines.

The invention has for its primary object the provision of a simple,economical and effective oil reservoir for said crank cases or splashpan, having means for automatically controlling the level of oil withinthe crank case with respect to the reservoir.

It contemplates especially a gravity feed from an air tight reservoirhaving a cut-off arranged adjacent the crank case operating to controlthe amount of oil fed into the crank case by reason of a device whereinthe level of the oil in the crank case controls the admission of airinto the reservoir. The exclusion of air from the reservoir prevents afeeding of oil because of the formation of a vacuum in the reservoir.

An additional feature of our invention is the provision of a devicewhereby the air fedinto the reservoir and associated pipes is kept cleanas it is gotten from the crank case.

With the above objects in view, the invention consists in certainpeculiarities of construction and combinations of parts as arehereinafter set forth with reference to the accompanying drawings andsubsequently claimed.

Figure 1 shows a plan view of the reservoir, and part or" the crank casein section.

Figure 2 is a cross section substantially on the line 2-2 of Figure 1.

Figure 3 is a cross section on the line 33 of Figure 1; and

Figure -l is a detail of a bushing.

l'leservoir 10 is aliixed at 11 to the horizontal flange marking theunion ot the crank case castings. il outlet pipe 12 leads from thebottom thereof. and is provided with a control valve 13 which may beoperated to cut off the flow of oil entirely. Air inlet pipe 14communicates with the top of reser- 17, 1921. Serial NO. 515,778.

voir 10. This pipe may be inade of rather lio'ht material to facilitateits sliding into member 15 which is provided with bushing 16, having afollower l7 and packing- 18 to prevent the escape of fluid.-

liiember 15 provided with a nipple 19 threaded in the crank case. Pipeis suitably connected to member 15 at 20. loose neck 21 leads frommember 15 and has a relatively short arm connected to pet cock 22provided with a nipple 23, threaded into the crank case. Pet cock islocated above and to one side of member Member 15 chambered at 16 so asto provide communication with pipe 12. air inlet pipe 14 and goose neck21. The air inlet pi pc 14- may be pushed downwardly into chamber 16 orwith drawn to any desired degree.

In Figures 3 and 4:, the slant or character of air inlet pipe llappears. This slant. however, is not necessary to our invention and. ifdesired, the pipe may be positioned vertically. Stop cocks 24- and 25may he provided.

In the operation of the device. control valve 13 is operative to permitthe exit oi oil from the reservoir 10 into pipe lt there is no oil inthe crank case. the lluid is fed into pipe l2. member 15 and nipple l9.into the crank case. At the same time there is a flow of air upwardly inair inlet pipe 14 to the top of reservoir 10. thus breaking the vacuumin reservoir 10 and permitting the tree outflow of the oil which risesthe crank case. Even after the oil in the crank case has passed abovenipple l9; the (low of oil will continue. as air is received throughnipple 23, pet cock 22 and goose neck 21. into chamber 15 whence itflows into air pipe This operation continues until the level of theliquid is above the 0nd of air inlet pipe 14. At this point the flow oioil stops as air is not being communicated to the reservoir 10. Hence itappears that the level of the fluid in the crank case is determined bythe location of the terminus of air inlet pipe 141:. Goose neck 12 neednot necessarily connect with the crank case. but such location is usefulin that it keeps the air which is fed into air inlet pipe 14 clean.(loose neck 12 may receive the air from any source. Pet cocks 24 and 25may be used to perform their customary function in connection with crankcases, if so desired, but in view of the automatic feed, they may bedispensed with.

Ve claim:

1. An oil feed mechanism for crank cases comprising a reservoir and oilpipe extending therefron, an air inlet pipe extending therefrom, achambered member receiving said pipes a connection between said memberand the crank case, said connection having a duct therein, the end ofsaid air inlet pipe extending through an opening in said chamberedmember and slidable upwardly in said opcng to regulate the height of oilin said crank case, and a second air inlet pipe communicating with saidchambered member.

2. An oil feed mechanism for crank cases comprising a member, aconnection leading from said member and having a duct therethrongh, acrank casing receiving said con nection, an air inlet pipe and an oilpipe communicating with said member, a second air inlet pipecommunicating ith said member and vertically slidable therein, saidsecond air inlet pipe terminating at a point below the end of said firstmentioned air inlet pipe and a reservoir receiving said second. airinlet pipe and said oil pipe.

3. An oil feed mechanism for crank cases 7 comprising a chamberedmember, a nipple thereon, a crank case receiving said nipple, air 1nletmeans communicating at one end with sald crank case and at the other end7 with said chambered member, an oil pipe and said chambered member, asecond pet cock communicating With said crank case, a pipe connectingsaid second pet cock l said chambered member, an oil pipe cc ed to saidchambered member, a third pipe communicating with said chambered memberand a reservoir receiving said oil pipe and said third pipe. 7

In testimony that We claim the "foregoing We have hereunto set our handsat Dane, in the county of Dane and State of Wisconsin.

LAWVRENCE M. ENDBES. MICHAEL A. ENDRES,

